Why JYJ’s Korean goods are limited?

[TRANS] There’s a sad news. I thought
I’ll be able to talk about it freely here.. Among my friends, there’s
someone who produced idol’s official goods, and when asked why don’t
they make JYJ’s goods and why JYJ’s goods are limited, it turns out that
among Korean’s goods maker, JYJ is banned.. Once (a company) worked
with JYJ, they won’t be offered contracts from other major companies.
It’s shocking that it’s not only SM, even other major companies also do
the same. So none of the manufacturer could do anything, thus JYJ’s
goods become rare items since the manufacturing is difficult due to the
vicious cycle (of banning companies), that’s why the other day’s
collection card was sold at a high price.. Under this type of bullying
(?) in the entertainment world is the worst environment, yet they didn’t
lose their popularity and still walked on their own path, I really
respect them for that.